Patents by Inventor Scott Ruetten

Scott Ruetten has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 2-benzothiazolyl tetrazolium salt indicators
    Patent number: 5300637
    Abstract: 2-Benzothiazolyl tetrazolium salt compounds have been found to be characterized by a reflectance spectrum exhibiting an extended plateau above about 600-650 nm. Such compounds are useful as chromogenic indicators for reducing substances such as NADH. The reflectance plateau confers improved accuracy to analytical assays, particularly for the determination of analytes of medical diagnostic significance, in which a colorimetric response on a reagent carrier matrix is measured by reflectance.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: April 5, 1994
    Assignee: Miles Inc.
    Inventors: Robert P. Hatch, Nan-Horng Lin, Scott Ruetten
  • Analytical method using tetrazolium salt indicators having a reflectance plateau
    Patent number: 5126275
    Abstract: General classes of 2-thiazolyl tetrazolium salt compounds have been found to be characterized by a reflectance spectrum exhibiting an extended plateau above about 600-650 nm. Such compounds are useful as chromogenic indicators for reducing substances such as NADH. The reflectance plateau confers improved accuracy to analytical assays, particularly for the determination of analytes of medical diagnostic significance, in which a colorimetric response on a reagent carrier matrix is measured by reflectance.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: June 30, 1992
    Assignee: Miles Inc.
    Inventors: Robert P. Hatch, Jurgen Kocher, Nan-Horng Lin, Scott Ruetten, Klaus Wehling